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Vermiculite Testing

vermiculite_testing in Ottawa and Montreal
Ottawa & Montreal

There has been a lot of worry and controversy surrounding vermiculite attic insulation over the past couple of decades. Why? Before 1990, most of the world’s vermiculite was extracted from a mine in Libby Montana, sold under the brand name Zonolite® and later found to contain 1–3% asbestos. This type of insulation was mostly used in attics.

As such, older homes and buildings (those built between the 1940s and 1990s) are at a higher risk of containing asbestos-contaminated vermiculite insulation.

If you are in doubt, your safest bet is to schedule professional vermiculite testing in Ottawa with the experts at Mold Busters. Vermiculite testing in Montreal is also available.


To ensure the most accurate results, we take four different samples of the insulation. We also set up proper containment and wear protective gear to ensure our safety and yours.

Call us now to get started!

Test Your Vermiculite Insulation
Test Your Vermiculite Insulation

What is vermiculite?

Vermiculite is a mineral used in a variety of commercial and consumer products for its unique fire-resistant properties, which make it a great insulator.

Because of this, vermiculite was once a very popular option for loose-fill insulation in attics. It can also now be found in a number of items like acoustic panels, gas fireplaces, insulating concrete, brake linings in cars, fireproofing wallboard, soil fertilizers, packing materials and firestop pillows.

It’s important to remember that vermiculite in its pure form is not dangerous. What’s more, not all products that have vermiculite as an ingredient contain asbestos. The products of biggest concern are loose-fill or blow-in attic insulation.

Once again, if you have any doubts, don’t hesitate to contact an expert for professional vermiculite testing and analysis.

Much like surface sampling for mold, a vermiculite test involves taking a sample of the suspected material and sending it to an accredited lab for analysis. The results of this testing will reveal whether or not the insulation contains any asbestos fibres.

Safety tips for handling vermiculite

Aside from getting a professional vermiculite test, you can also take these simple steps to reduce the health risks associated with exposure to asbestos-containing vermiculite.

  • Assume that any vermiculite in your home contains asbestos and avoid contact with it.
  • Do not disturb loose-fill vermiculite insulation.
  • Wear a respirator mask, gloves, long sleeves, and protective goggles if going near the vermiculite.
  • Avoid touching the insulation.
  • Avoid using spaces with exposed vermiculite insulation for storage.
  • Do not allow children near loose fill vermiculite insulation.
  • Do not attempt to take samples of vermiculite yourself.

Your health and safety are important to us, which is why we strive to deliver the fastest and most reliable vermiculite testing services for both residential and commercial properties.

Book vermiculite testing in Ottawa or vermiculite testing in Montreal today. Contact Mold Busters.